Adventures in Wonderland (1992)

S1E53 Vanity Hare

The March Hare accidentally assists the Queen with her crossword puzzle, earning him the prestigious Smarty Pants Medal. However, this newfound recognition goes to his head, and he starts to think too highly of himself. It doesn’t take long for him to realize that being a know-it-all can lead to overconfidence, reminding him that sometimes, it's best to stay humble.